How to clear an ArrayList in Java?

March 30, 2022

To clear an ArrayList in Java, call clear().

Here's how you do it:

java.util.List<String> list = new java.util.ArrayList<>();
list.add("Hello");
list.add("World");
list.add("!");

System.out.println(list); // [Hello, World, !]

list.clear();

System.out.println(list); // []